<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="avator_box">
        <img src="../assets/logo.png" />
      </div>
      <!-- 登录表单区域 -->
      <el-form class="login_form" :model="loginForm" :rules="loginRules" ref="loginRuleForm">
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input
            type="password"
            v-model="loginForm.password"
            prefix-icon="iconfont icon-3702mima"
          ></el-input>
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="loginSubmitForm('loginRuleForm')">确定</el-button>
          <el-button type="info" @click="resetLoginForm()">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>
<script>
export default {
  data() {
    return {
      loginForm: {
        username: '',
        password: ''
      },
      loginRules: {
        username: [
          { required: true, message: '请输入用户名称', trigger: 'blur' },
          { min: 3, max: 8, message: '长度在 3 到 8 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 登录
    loginSubmitForm(loginRuleForm) {
      this.$refs[loginRuleForm].validate(async valid => {
        if (valid) {
          const { data: res } = await this.$http.post('login', this.loginForm)
          if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
          console.log(res)
          // 把token令牌存储到sessionStorage
          window.sessionStorage.setItem('token', res.data.token)
          this.$message.success('登陆成功')
          this.$router.push('/home')
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    // 重置
    resetLoginForm() {
      this.$refs.loginRuleForm.resetFields()
      // console.log(this.$refs)
    }
  }
}
</script>
<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}
.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 5px;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.avator_box {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 1px solid #eee;
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  padding: 5px;
  background-color: #fff;
  box-shadow: 0 0 5px #ddd;

  img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
  }
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 15px;
  box-sizing: border-box;
}
.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
